Rotary sheet-printing machine.



R. C. SEYMOUR.

ROTARY SHEET PRINTING MACHINE.

APPLICATION FILED JULY 9, 1912.

Patented May 5, 1914.

3 SHEETSSHEBT 1. J

INVENTR.

R. O. SEYMOUR.

ROTARY SHEET PRINTING MACHINE.

APPLICATION FILED JULY 9, 1912 Patented May 5, 1914.

3 SHEETS-SHEET 2.

K II

WW 0 IIfJVENTOR? 0. SEYMOUR.

ROTARY SHEET PRINTING MACHINE.

APPLICATION FILED JULYS), 1912.

1,095,527, Patented May 5, 1914.

3 BHEETS-SHEET 3.

UNITED STATES PA RALPH C. SEYMOUR, 0F LARCHMONT, NEW YORK, ASSIGNOR .TOB; HOE AND (30., OF

NEW YORK, N. Y., A CORPORATION OF NEW YORK.

ROTARY SHEET-PRINTING M'ACHINE.

Specification of Letters Patent.

Application filed July 9, 1912. Serial No. 708,464.

Zo all whom it may concern:

Be it known that I, RALPH 0.. SEYMOUR, a citizen of the United States,residing at- Larchmont, county of Westchester, and State of New York,have invented certain new and useful Improvements in RotarySheet-Printing Machines, fully described and represented in thefollowing specification and the accompanying drawings, forming a part ofthe-same.

This invention relates to improvements in rotary sheet printingmachines.

In rotary machines printing on sheets and which employ two printingcouples for delivering successive print-ings on the same side of thesheet, it is necessary to transfer the sheet from the first to'thesecond couple in such a way that the side which has been printed by thefirst couple will be in position to receive the impression fromthe'print-ing member of the second couple. The transfer cylinder is acommon sheet transferring agency and has a marked advantage in that ithandles the sheet without losing control of it and thus interfering withthe register, but its employment in a machine 'such as has beendescribed: where it is .located between the couples is objectionable,because it' interferes'with proper access to the printing cylinders forthe pur ose of making ready.

It is one of the ob ects of this invention to produce an improved sheetprinting machine having a plurality of couples adapted to deliversuccessive impressions on the same side of the sheet, and a transfercylinder located between the printing members of the couples, thecylinder being mounted in such a way that it may be moved from betweenthe couples to permit access thereto for the purpose of making ready.

A further object of the invention is to produce an improved printingmachine having a plurality of printing couples adapted to deliversuccessive printings on the same side of the sheet and having a transfercylinder located between the couples, the transfer cylinder beingmounted in such a way that it may be moved out from between the couplesfor the purpose of making ready, this movement being effected withoutdisturbing the driving relation of the couples.

with these and other objects not specifically referred to in view, theinvention consists in certain constructions and in' certain parts,improvements and combinations as will be hereinafterfully'described andthen specifically pointed out.

In the accompanying drawings :Figure 1 is a diagrammatic side elevationof a printing machine constructed in accordance with the invention. Fig.2 is a sectional elevation. Figs. 3 and 4 are detail views.

Referring to the drawings which illustrate one embodiment of theinvention, 1 indicates the printing cylinder and 2 the impressioncylinder of a rotary printing couple. The cylinder 1 is mounted on ashaft 3 and is inked by the. usual inking mechanism, indicated at 4. Thecylinder 2 is mounted on the shaft 5.. The path of the entering sheet isindicated by the broken line 6. The printing cylinder of the secondcouple is indicated at 7, this cylinder being 'mounted on a shaft 8 andbeing inked by the usual mechanism, marked 9. The impression cylinder ofthis couple is indicated at 1.0, this cylinder being mounted on a shaft11. The sheets after printing may be taken from the cylinder 10 by theusual delivery cylinder 12 mounted on a shaft/13,

. andmay be'delivered fiat in any suitable way, .as by tapes, indicatedat 14. In machines. embodying the invention means will be provided fordriving the cylinders of the couples in unison. While these means may bevaried, in the particular construction illustrated, the shaft 13, which.for the purpose of this specification may be considered the drivingshaft of the machine, is provided with a gear 15 which meshes with anintermediate 16, this intermediate meshing in turn with anotherintermediate 17 The intermediate 17'meshes with a shaft 5.

In machines embodying the invention the sheets will be transferred afterbeing printed by one couple, to the next couple by a transfer cylinder,as 19, which will be mounted in such a way that it may be moved frombetween the couples to permit access thereto for making ready. TheQmeansfor mounting the transfer cylinder so that itv may be moved as describedmay be varied within wide limits. In the best constructions embodyingthe invention, however, this transfer cylinder will be mounted in such away that its movement may be effected without disturbing the drivingrelation either of the couples or of the transfer cylinder itself. Itwill be understood that the cylinders 2,

gear 18 on the 10 and the transfer cylinder 19 will be provided withsheet taking devices, such, for instance, as the grippers indicated inthe drawings. In the particular construction illustrated, the cylinder19 is mounted on a shaft 20, this shaft being supported in arms 21 swungon the shaft 5. There will be one of these arms 21 on each side of themachine and they are provided with sectors 22 which mesh with pmions 23mounted on a shaft 2& extending across the machine from side to side.These shafts 24: are further provided with worm gears 25 meshing withworms 26 on vertical shafts 27 These vertical shafts carry bevel gears28 which mesh with similar bevel gears 29 on an operating shaft30extending across the machine from side to side. This shaft may beprovided with squared end, as indicated at 31, for the attachment of asuitable turning means, such as a crank, The shaft 20 is provided with agear 32 which meshes with agear 33 on the shaft 5 of the cylinder 2.

It will beimderstood that by the mechanism described the transfercylinder 19 can be moved away from between the cylinders 2 and 10 topermit access to these cylinders for the purpose of making ready.Further, the movement of the cylinder 19 is effected without disturbingthe relation of its sheet taking devices with respect to the sheettaking devices of the cylinders 2 and 10, that is to say, as thecylinder 19 moves, its gear 32 rolls on the gear 33 so that when thecylinder 19 is moved back into its operative position its sheet takingdevices are in the same relation with respect to the sheet takingdevices of the other cylinders that they were before the cylinder wasmoved. Further, if it be necessary, as it frequently is, to turn thecylinders over while the cylinder 19 is moved out from between thecylinders 2 and 10, this can be accomplished without distnrbing therelation of the sheet taking devices of the several cylinders becausewhen any cylinder is turned over the other cylinders have acorresponding movement.

I It will be understood that changes and variations may be made in theconstruction by which the invention claimed is carried into efiect,fore, is not to be confined to the particular shaft of one of themembers 0 roaster The invention claimed, thereconstruction hereindescribed and illustrated in the accompanying drawings.

What is claimed is 1. The combination with a pair of rotary printingcouples arranged to deliver successive printings on the same side of thesheet, of a transfer cylinder located between the couples, means fordriving the transfer cylinder in a direction opposite to that of theimpression cylinder of the first printing cou- 'ple, means for drivingthe printing couples in unison, and means for moving the transfercylinder from between the couples while maintaining the driving relationof the couples and of the transfer cylinder.

2. The combination with a pair of rotary printing couples arranged todeliver successive printings on the same side of the sheet, of atransfer cylinder located between the couples, gearing for driving themembers of the couples in unison, a gear' on the shaft of one of themembers of one of the printing couples, an intermeshing gear on theshaft of the transfer cylinder, and means for moving the trans-fercylinder from between the couples without interrupting the drivingrelation between its gear and the gear that drives it. i i

3. The combination with a pair of printing couples arranged to deliversuccessive printings on the same side of the sheet, of a transfercylinder located between the couples, gearing for driving the members ofthe couples in unison, a driving car on the one of the couples, anintermeshing gear on the shaft of the transfer cylinder, and arms inwhich the transfer cylinder is mounted, said arms being pivoted on theshaft which carries the gear for driving the transfer cylinder gear.

- In testimony whereof, I have hereunto set my hand, in the presence oftwo subscribing witnesses.

RALPH c. SEYMOUR.

Witnesses RICHARD KELLY, HARO D M. TILLINGHAST.

